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<head><meta charset="utf-8"><title>Bisecting LLVM · t-compiler/wg-llvm · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/index.html">t-compiler/wg-llvm</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/Bisecting.20LLVM.html">Bisecting LLVM</a></h3>

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<a name="247498133"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187780-t-compiler/wg-llvm/topic/Bisecting%20LLVM/near/247498133" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Aaron Hill <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/Bisecting.20LLVM.html#247498133">(Jul 28 2021 at 18:29)</a>:</h4>
<p>The Google cloud storage used by llvm-bisect is no longer active: <a href="https://lists.llvm.org/pipermail/llvm-dev/2021-July/151623.html">https://lists.llvm.org/pipermail/llvm-dev/2021-July/151623.html</a></p>
<p>Does anyone know of a way to bisect LLVM builds that doesn't require rebuilding it locally for each commit?</p>



<a name="247503330"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187780-t-compiler/wg-llvm/topic/Bisecting%20LLVM/near/247503330" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nagisa <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/Bisecting.20LLVM.html#247503330">(Jul 28 2021 at 19:07)</a>:</h4>
<p>manual/local bisects of llvm are somewhat less painful than rustc fwiw. but I would still grab a hefty cloud vm for this personally.</p>



<a name="247503732"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187780-t-compiler/wg-llvm/topic/Bisecting%20LLVM/near/247503732" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> cuviper <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/Bisecting.20LLVM.html#247503732">(Jul 28 2021 at 19:10)</a>:</h4>
<p>it's also helpful to enable <code>ccache</code> or similar, since bisecting may bounce back-and-forth over major changes</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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